Exposure and Imaging
... • Short exposure wavelengths can create standing waves in a layer of photoresist. Regions of constructive interference create increased exposure. • These can impair the structure of the resist, but can be eliminated by: – use of multiple wavelength sources ...
... • Short exposure wavelengths can create standing waves in a layer of photoresist. Regions of constructive interference create increased exposure. • These can impair the structure of the resist, but can be eliminated by: – use of multiple wavelength sources ...
Glossary
... associated amplifiers. Be aware that the ISO Standard that governs measuring and specifying digital sensor sensitivity is broad…it allows 5 different ways of performing these sensitivity measurements. These 5 procedures are roughly equivalent, but they can be used by a manufacturer to gain a marketi ...
... associated amplifiers. Be aware that the ISO Standard that governs measuring and specifying digital sensor sensitivity is broad…it allows 5 different ways of performing these sensitivity measurements. These 5 procedures are roughly equivalent, but they can be used by a manufacturer to gain a marketi ...
Physics Worksheet 3 Potential Difference 1. The potential difference
... 2. Find the magnitude of the potential difference between two points located 1.4 m apart in a uniform 650 N/C electric field, if a line between the points is parallel to the field. ...
... 2. Find the magnitude of the potential difference between two points located 1.4 m apart in a uniform 650 N/C electric field, if a line between the points is parallel to the field. ...
Film speed
Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital imaging systems.Relatively insensitive film, with a correspondingly lower speed index, requires more exposure to light to produce the same image density as a more sensitive film, and is thus commonly termed a slow film. Highly sensitive films are correspondingly termed fast films. In both digital and film photography, the reduction of exposure corresponding to use of higher sensitivities generally leads to reduced image quality (via coarser film grain or higher image noise of other types). In short, the higher the sensitivity, the grainier the image will be. Ultimately sensitivity is limited by the quantum efficiency of the film or sensor.